Feed-water controller.



G FLEMING FEED WATER GONTROLLER.

' APPLIUATION FILED Am.2a,19o9,

Patented Feb. 7, 1911.

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Lle() GEORGE FLEMING, OF CHICAGO, ILLINOIS.

FEED-WATER CONTROLLER.

Specification of Letters Patent.

Patented Feb. *7, 1911.

Application led April 23, 1909. Serial No. 491,762. y

To all whom it 'may concern:

Be it known that l, GEORGE FLEMING, a citizen ofthe United States,residing in the city of Chicago, county of Cook, and State of Illinois,have invented a certain new and useful Improvement in Feed-WaterControllers, of which the following is a specication.

This invention relates to feed water controllers. Its principal objectsare to provide simple and inexpensive apparatus for automatic control ofthe feed water supply to boilers where a water supply under pressure isavailable.

The drawing represents a diagrammatical outline, in elevation, partlysectional, of my invention as applied to van ordinary steam boiler.

Referring to the drawing, boiler 9 is provided with safety valve 10,pressure gage 11, and water-gage 12.

"Water is admitted to boiler 9, and other parts of my apparatus, fromwater main 13 by riser 14E, terminating in T fixture 15, from which pipe16 leads into boiler 9, while the opposite opening connects, by means ofpipe 17, elbow 1S, and pipe 19, with piston pump 20. A 'short distancebelow fixture 15, riser' lil is provided with checkvalve 9,1, arrangedto permit free passage of water upward, but to prevent passage of waterin the opposite direction. Below checkvalve 21 pipe 22 branches ofl:lfrom riser 14;, and connects with pump 20. From the top of boiler 9steampipe 23, controlled by valve A9 leads to radiators, engines etc.(not shown in drawing), with branch 38, controlled by valve 40, leadingto pump 20. From gas main 2o riser 26, provided with shut-off valve 27,leads to burner 28, located close to the bottom of boiler 9. By means ofpipe 29, the exhaust steam from pump 20 is led to pipe 31 whichsurrounds riser lll, thence finding vent through pipes 82 and 33 tosewer 341 and the open air. Riser 14C, below pipe 22, is provided withshut-olf valve 35, and the boiler end of pipe 16 is inside of boiler 9,provided with automatic shut-off valve 3G, controlled by float 37 whichis designed to close valve 36 whenever the water in boiler 9 rises to acertain level,

and to open valve 36 whenever said water falls below said level. Pump 201s so arranged that the piston on which the steam from boiler 9operates, is enough larger than the piston of the pump, to enable thepump to readily inject water into boiler 9 against the pressure of thesteam therein.

The operation of my apparatus is as follows Valve 35 is opened,admitting water to boiler 9, until valve 36 is closed by the rise offloat 37;- incidentally riser 14, pipe 22, pipe 1G, T 15, pipes 17 and19, and elbow 18 are lilled with water. Valve 27 is then opened, andburner 2S lighted. As soon as by the generation of steam the water levelin boiler 9 is lowered, more water will be automatically admitted by theopening of valve 3G though the mere fall of {ioat' 87, as long as thepressure in main 13 is greater than that of the steam in boiler 9. Assoon as the pressure in boiler 9 exceeds the pressure in main 13,checlrvalve 21 will not open, when valve 3G is opened, but the steampressure on the steam piston of pump 20 will be so great as toautomatically start pump 20, and thereby pump water into boiler 9 untilvalve 8G again is closed and thereby further accession of water shutoff, incidentally stopping pump 20 because there is no outlet for thewater pumped, when valve 36 is closed.

Vhat I claim, and intend to protect by Letters Patent, is

ln steam generating apparatus the combination of a boiler; a waterfeedpipe entering said boiler; an automatic float-regulated valve, inside ofsaid boiler, on said waterfeed pipe; a pipe connecting said waterfeedpipe with a watermain; a checkvalve on said connecting pipe; and a pumphaving steam connection with the boiler, and arranged and connected soas to discharge water into said waterfeed pipe whenever saidfloat-regulated valve is open, and the pressure in the boiler is higherthan the pressure in the watermain; substantially as and for the purposeset forth.

GEORGE FLEMING. lVitnesses EDWARD l. BUGKLIN, CARL Srliovniz.

